protected override void visitGroupTemplateDeclaration(GroupTemplate declaration)
{
writer.Append(KeywordEnum.GROUP.ToString()).Append(' ');
writer.AppendIdentifier(declaration).Append(' ');
writer.Append(KeywordEnum.IS.ToString()).Append(" (");
writer.AppendOutputEnums(declaration.EntityClasses, ", ");
if (declaration.RepeatLast)
{
writer.Append(" <>");
}
writer.Append(");").NewLine();
}